Improvement in nut-locks



G. P. FULLER;

NUT-LOCK.

No.173,936. F161 Patented Feb. Z2, 1876.

' indicate the same parts.

GEORGE FULLER, OF 'WELLSVILLBL NEW YORK.

IMPROVEMENT IN. Nur-LOCKS.

Specification forming part of Letters Patent No. 173,936, dated February 22, 1876 November`24, 1874.

application filed To all whom it mm1/concern: i

Be it known that I, GEORGE P..FULLER,

`of Wellsville, in the county of Allegany and i State of New York, `have invented; an Improvement in N ut-Locks for Railroad-Rails,

A of which the following is a specification:

My invention relates to the combination of a key-rod,'having beveled edges, with all the nuts of a joint, the rod being passedrthrough dovetailslots inthe outcrsides` of the nuts,

and bentat the ends, orotherwise secured in its longituninalposition, to prevent itsbeing lnoved by frequent jars. When t'he nuts are no thick 4enough to admit of forming the slots, and still have suftlcient thickness for the screw-threads, separate nuts provided with Y the slots'are used for the locking operation.

In the accompanying drawings,` Figure l is a plan view of the contiguous ends of the two rails A` A,`with my improvement attached.

` Fig. 2 is a side elevationot` the saine. Fig. 3

is a cross-section at the line .in x of Fig. 1.

`Like letters ot" reference in all the figures A A are the contiguous ends o'f two rails.

B B are `thetish-plates; C @screw-bolts, and

D D nuts for clamping the fish-plates lupon the rails. Etisa ke`y-rod, which is fiaton its inner side, and has beveled edges afa throughout its whole length.

bolt-hole to receive the rod E, which is passed through two of the slots of each nut When brought in line, as seen in Fig. 2. `The nuts A A The nuts D have dove? u `rail-slotsb b b b, which run radiallyT from the may have any even number of slots, s o asfto have two in line for the connection of the key. The object in having a large number is to provide for a slight change in the position-ot' the nuts in accommodation to screwing them up to just the proper degree ot' pressure` upon the usb-plates B. `There are only two bolts, C, shown in the drawing, yet it will appear that any'nunlber may be used.` When the nuts D are not thick enough `to admit `ot' the dovetail slotsb outside of the screw-threads,. additional Inuts having these slots may be used. i Therear end of the key-rod E is headed by a bend, c, or otherwise, to'preventl its `being driven too far, and its forward end,iwhich is beveled and made thin at its point for `its easy passage through the slots 11, may be t slightly bent to prevent the rod4 being moved' back by frequent jars caused b'y the passage ot' trains over the rails. v

ward endfniay be slit so as to be slightly opened afterxthe connection of the rodwith the nuts; or, the rod maybesecurcd by a cold-shut ring, a spring-key, or other device.

I claim as my inventioni The. nuts D, having dovetail slots b,"in coinl bination with the rod E, having beve-led edges for locking two or more nuts, substantially in the manner and forthe purpose set forth.

GEORGE PQEULLE'E.

' Witnesses GEO. H. BLAGKMAN, `H. D. TREAEWELL.

If` desired, the for- 

